Question

estimate the measure of this angle within 15°. work it out

Explanation:

Step1: Recall angle - type knowledge

An acute angle is less than 90°. This angle is acute.

Step2: Make an estimate

A 45° angle has two arms that form a symmetric - looking 'V' shape. This angle looks close to 45°. Since we need to estimate within 15°, values in the range of 30° - 60° are valid estimates. A reasonable estimate is 45°.

Answer:

45